Antidrip milk bottle



mg. 27, 1935. c. o. SWANSON 2,012,487

ANTIDRIP MILK BOTTLE Filed April 18, 1934 INVENTOR CARL 0. SWANSON ATTORNEY Patented Aug. 27, 1935 1 UNITED STATES PATENT OFFICE 2,012,487 44 ANTIDRIP MILK BOTTLE I Carl 0. Swanson, Minneapolis, Minn.

Application April 18, 1934, Serial No. 721,169

5 Claims. (01. 215-1) I i This invention relates to improvements in evaporation surface the aforementioned corrugamolded glass bottles, particularly of the type extions are provided in the channels, and thesecortensively employed for domestic as well as restaurugations y h accelerate evaporation I rant and hotel use, for milk and cream, and the but also by virtue of their relatively offset ar- 5 primary object is to provide means of a novel, rangement Will. frequently perate to split p 5 "efficient, and practical nature for preventing the dr ps f milk u i d wn v r th m t t r y drip of milk and cream from flowing down over reduce the weight and increase the relative adhethe outer face of the bottle after part of the consionproperties of the liquid, thus further retardtents'have been poured from the bottle. It is a in'gthe otherwise normal gravitational pull and to common and well known objection or fault to movement downwardly,

I milk and cream bottles of the conventional form 7 It may here be well to call attention to and dis now in use that when a part of the contents tinguish the present invention from the one disthereof is poured out the generally rounded or closed and claimed in my Patent No. 1,929,221, enlarged pouring edge causes a portion of the issued October 3, 1933, for Antidrip bottle, on an liquid to adhere sufficiently so that when the application filed May 31, 1933. In that device I bottle is again righted, after each pouring, such provided the neck of the bottle with a reticulated liquid will run down the side of the bottle rendersurface formed by a profusely distributed series ing it slippery to hold and will also invariably I of indents into which the drops would run and be 1 reach and spread under the bottleto wet up and secured by surface adhesion. This structure,

my soil the table, refrigerator shelf, or other surface while operative and very efficient in use, is subject upon which the bottle is set. to certain objections, the principal ones of which A further object is to provide anti-dripping are that with present methods there is some diffimeans that will serve the additional purpose of culty in cleaning the indents; indents also necesso roughening or forming the bottle surface about I sarily weaken the wall structure in view of their the neck portion thereof that it will present a required depth; and lastly there is some difiiculty 25 better grip and thus tend to prevent slipping of in casting or molding a bottle of this type inasthe bottle out of the hand. much as the molds, when used in registering More specifically my purpose is to provide a pairs, cannot be freed from the bottle when the H "portion of the upper outer surface of the bottle same is formed and in readiness to be discharged.

with spaced annular ribs projecting outwardly of In other words, when a bottle of this type is 30 the normal surface, and to provide the spaces formed with molds of the type now generally inintermediate said ribs with a series of shallow use, it must have such a surface contour that recesses or corrugations with the corrugations bethe opposite mold units can be released from the tween each pair of ribs offset with respect to the bottle by movements in opposite directions. To

1 corrugations of the series immediately above or overcome these objections and to provide the vari- 1 below it, and all the corrugations preferably being ous advantages which I have already referred to, below the normal bottle surface, thereby creating I have, designed the structure illustrated in the annular channels with fluted o-r corrugated botaccompanying drawing, in whichtoms that are relatively or suificiently deep to Fig. 1 is an elevation of the upper portion of a 4'0 5: accomplish the desired effect, but yet will not conventional type of milk bottle which embodies 40 extend into the bottle wall to materially weaken my invention, and which is broken away in part the structure thereof. The purpose of the chanfor purpose of illustration. nels is to catch and retain or at least to greatly Fig. 2 is a greatly enlarged sectional detail view retard the drops of milk or cream escaping o-ver through a portion of the bottle neck which has E5 ,the pouring lip, so that such drops cannot reach been designed according to the invention as illusthe smooth surface below the ribbed surface and trated in Fig. 1.

flow down to the support beneath. And inas- Fig. 3 is agreatly enlarged sectional detail view much as the ribs are of annular horizontal formaas shown on the line"3--3 in Fig. 1. .ition any drops caught in the channels will also be Referring to the drawing more particularly H caused to flow in an annular direction when the and by reference characters, 4 designates a bot- 50 bottle is subsequently tilted, and this action retle of the type generally employed in the sale and sults in the drops being spread over a greater sur- H use of milk and cream. The bottle has a relface to thereby expedite the evaporation thereof atively largebody portion (here mostly omitted) while such drops are still being maintained at a and tapers upwardly into a neck portion 5, termirelatively high level. To further increase the nating in the enlarged, integral, and generally '55 rounded pouring lip t having a cap receiving recess l. The numeral H designates the seam formed at the juncture of the twoopposed outer molds, and while this seam or ridge has no function in the present invention it is shown for the purpose of illustrating where the molds meet and thus also determine the direction of intermittent movement of the molds with respect to each other during the respected molding operations.

The ribbed and corrugated surface portion of the bottle preferably begins a shortdistance below the pouring lip 6, and then continues down over the neck portion substantially as indicated. Theannular ribs 6 are formed integrally with the neck portion of the bottle and extend outwardly beyond the normal outer surface 9 of the bottle.

are preferably spaced approximately one-eighth movement of the drops.

Extendingat right angles-to thejannular ribs '8, thebottle neck surface is provided'with corrugations It which may assume approximately the curvature indicated by the enlarged illustration of Fig; 1%. Thesecorrugationshave'a triple purpose, the first of which is to increase the surface area between the annular-ribs 8' so that such areas will be substantially greater than would occur "if the bottle surface "between the ribs followed the jnormal:surface line 9, as with this arrange- 'ment' it will be seen that there will be presented a greater surface'for'the drops to adhere to, and consequently they will have agreater tendency to-spread outand cause a greater evaporization surface. The'second reason for'the'corrugations lllis to retard the movement'of the drops annularly'about the bottleneck when such drops are Tretained by theribs 8, and cause'to flow in an annular direction when the'bottle is tilteda secoridtime. The third'reason'for the'c orrugations,

' ja nd'this concerns 'itself'with the offset relationshipbetween the corrugations of each series with {those of the next'a'djacent series, is thatfwhen'a drop of rnilkor cream passes down over one of the *ribsia andcontactswith a'highpointof a cor- "lrugation immediately below, there willbe'a de- .cidedtendency for the drop'to divide itself into I v twoTparts; and'if these parts are sufiiciently'great i'n volum'e' to have a weight that will carry them below still another annular rib, then itwill be seen that'such parts will be reduced in size and "will'meet' with the same dividing influence. below as they did above, and it is of course obvious that "asjthe drops are 'thus'split up into'smaller porti'on's there will be a lesser tendency for them to continued downwardly, and simultaneously 'each' liquid part thus formed will also be spread out over a wider surface area and thus be more efficiently subjectedto'the drying or evaporization of thedrop, which takes place while the parts are thus'held in contact with the surface.

7 Thus it will be seen that the corrugations play an important part in securing the advantages that have already been referred to. It should be "noted; however, that if the corrugations H] are of the same formation or contour at all points about the-bottle neck they will interferewith the proper separation of the molds,which'molds must have "sufficient clearance'so that they canbe separated in directly opposite directions from the seam line "II {and for. this reason, as clearly shown'in Fig.3, I." ha've so designed the corrugations so thatas These ribs, in a -:full sized bottle,

that in only extremely rare instances will any they approach the seam line I l they will either be slightly shallower or in any event will have to be so curved and formed that they will permit the withdrawal of the mold in a direction at right angles to the diameter passing through the same line H. The arrows i2 shown in Fig. 3 indicate the direction of movement of the mold forming this portion of the bottle, and it will be seen from the position of the arrows that no part of the corrugations extends sufficiently into the wall of the bottle'to obstruct the necessary mold movement.

The corrugations opposite the seam II and corresponding with the lowermost corrugations as shown in Fig. 3, as well as the corresponding corrugations at the diametrically opposed side of the-bottle, will also conform to this principle so that both sides of both molds will be similarly free 0 f obstructing contact by such corrugations. It will be seen that the recesses or lower parts of the corrugations preferably extend below the surface line '9 so as to thereby accentuate the depth of the recesses from the outer limits of the ribs 8; but it should also be noted that while the recesses of'the corrugations extend below Y the surface line they donot do so to an extent that will appreciablyweaken the strength of the bottle Wall.

.From the foregoing it will be seenthat when one or more drops of liquid escape over the.pouringlip 6 and run down to the reticulatedsurface, the downward movement will first besubstantially retarded by the successive annular ribs -8; and as thedrops come incontact with these ribs or rather with the surface between the ribsthey will have a decided tendency to not onlyseparate into parts by virtue of the high spots of the corrugations, but will flow into the annular channels formed by the ribs 8 andstay there until they'have evaporated. .If,.before complete evapo- I rization takes place, the bottle is again tilted, the drops will move, if at all, in the direction of the channels about the bottle until theyspread over a stillgreater drying area; and it is found spilledliquid ever reach the lower-partor parts of the ribbed and corrugated surface.

It will alsobe seen that although the ribs and corrugations will function in precisely themanner desired, they are so formed that they will have no objection by virtue of difficulty in making the bottle, as the parts have been so designed that conventional types of molds and machinery now in use may be employed.

It is of course understood that the type -of surface created by the ribs and corrugations will :so roughen the bottle neck surface that :it will greatly decrease the possibility. of the bottle slipping from the hand.

It is understood that suitable.modifications may bemade in the-structureas-disclosed, pro- 'vided such modifications come within the spirit and-scope of the appended claims. Having now thereforefully illustrated and described my invention, what I claim to be new and desire to protect by Letters Patent is:

l. A milk or cream'bottle having a portion of its outer neck surface provided with a'seriesof annular ribs closely associated but vertically tard and laterally spread the downward 'flow of such'drops, and permit the flow of saiddrops in .75

an annular direction about the neck surface in said channels when the bottle is tilted.

2. A milk or cream bottle having a portion of its outer neck surface provided with a series of annular ribs vertically spaced at sufiiciently close intervals that the intermediate channels will, through surface adhesion of liquid drops coming in contact therewith, retard and laterally spread the downward flow of such drops, but which will permit the flow of said drops in an annular direction when the bottle is tilted, said ribs projecting outwardly beyond the normal outer surface line of the bottle neck.

3. A milk or cream bottle having a portion of its outer neck surface provided with a series of annular ribs vertically spaced at such intervals that the intermediate channels will, through surface adhesion of liquid drops coming in contact therewith, retard and laterally spread the downward flow of such drops, but which will permit the flow of said drops in an annular direction when the bottle is tilted, said ribs projecting outwardly beyond the normal outer surface line of the bottle neck, and said intermediate channels having inner surface extremities extending at least in part below or inwardly of the said surface line.

4. A bottle having an outer surface portion below its pouring lip provided with vertically spaced horizontal ribs defining intermediate annular channels, with the surface between said ribs having vertical corrugations therein, said ribs extending outwardly and said corrugations being disposed inwardly with respect to the normal adjacent outer surface line of the bottle.

5. A bottle, of the type formed in two oppositely moved separable molds, and being provided with a vertically spaced series of annular ribs with vertical corrugations in the bottle surface intermediate the ribs, said corrugations extending around the bottle but those adjacent to the point of division between the molds being so formed as to form no obstruction to and provide withdrawal clearance for the molds.

CARL O. SWANSON. 

